Adding and recording machine.



B. DYSART.. ADDING AND RECORDING MACHINE.

APPLICATION FILED JULY 6.1909.

Patented Dea-26,1916.

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ADDING AND RECORDING MACHINE. APPucATIoN rlLEo JULY 6.1909.

1,209,821 Patented D@I 26,1916.

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ADDING AND RECDRDING MACHINE.

.APPLICATION FILED IuLY 6. 1909.

1,209,821. Panama Dec. 26, 1916.

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APPLICATION FILED JULY 6, 1909.

Patented De. 26, 1916.

W i [I IIIIII E [um f HMI III [I mm @n II [II u UNITED sTATEs PATENT oEEIoE.

BIRNEY DYSART, OF ST. LOUIS, MISSOURI, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE DALTON ADDING 'MACHINE COMPANY, CINCINNATI, OHIO, A COBI'ORATION OF OHIO.

ADDING AND RECORDING MACHINE.

Specification of Letters'Patent. Patented Dec, 26, 1916 Application led July 6, 1909.. Serial No. 505,972.

provide mechanism wherebyy one of two.

numbers successively struck on the keys may be subtracted from the other without the necessity of manually iilling the full ment of the. subtrahend.

Another object is to provide a machine comprising numeral keys, and mechanism operable to add and record numbers struck on the keys, in combination with mechanism for operating said adding mechanismA ef fectively to produce and represent a number which is the remainder or difference between the number or total represented in said adding mechanism and another number'subsequently struckon the keys.

Another object is to provide mechanism in an adding and recording machine whereby, after the minuend has 4been recorded, the complementary fnines of the subtrahend maybe automatically introduced in to the machine without the necessity of being preliminarily struck on the keyboard.

Another object is to provide means for introducing any number of ninesnecessary to constitute the complement of any number to the full capacity of the machine without setting up said nines through the medium of the keys.

With these and other objects in view I have embodied my invention in a machine of known construction and have illustrated the same in the accompanying drawings in which:

Figure 1 is a side elevation of such a machine showing a part of my present invention in combination therewith. Fig. 2 is a chart or plan of the completed key-board of this machine.y Fig. -3 is an illustration of an example of subtraction as ordinarily performed. Figs. 1., 5, and 6 are views illustra# tive of specimens of work performed on this machine through cooperation of my present invention. Fig. 7 is a vertical sectional view of the rear portion of this machine .showing the cooperative relation of the subject-matter ofthis invention with the sample.

`of the pins representing ment bar 9 extends transversely across the numbers setting and recording devices of the machine. Fig. 8 is a sectional view further illustrating the v coperative relation of the present invention with the numbers setting the recording mechanisms. Fig. 9 is a detailed perspective view of the devices whereby any number of complementary nines may be filled in. Fig. 10 is a perspective view of the lever by whose loperation 1 is added to the unit struck on the keys when the adding mechanism is operated after'a number complementary to the sub- Atrahend has`been set up in the machine..

Fig. 11 is a plan of the cross-carriage and the cooperating parts of the presentl invention.v Fig. 12 is a rear elevation illustrating the relative positions of thecross-carriage and the `cooperating parts of present in- Kvention.

I haveillustrated the subject-matter of the present invention as embodied in a tenkey machine of the cross-carriage typebut it will be understood that by adaptation requiring only the skill of the expert itmay be adapted to machines of any construction. A specimen of the -machine with which I have illustrated the present invention and which machine is now welly known commercially constitutes part of the subject-matter of an application tiled by Hubert Hopkins, January 24th, 1903, Serial No. 140,390, and

- is shown in British Patent Number 854, of

1904. The adding mechanism of that ma.- chine, as is well known, includes a key-board of ten digit keys 1 representing all of the 4 ten figures. The levers 2 ofthe keys 1 eX- tend longitudinally and converge at their rear ends where they are provided with vertical extensions or hammers 3. Rails l extend'transversely above the rear ends of the levers 2 and, by means of suitable anti-friction devices 5, support a transversely movable carriage 6. A series of rows of pins 7 are mounted in the carriage 6, there being nine pins ineach row. The rearmost pin of each row represents 0, the next pin in each row represents the digit 1, and so on to the foremost pins which represent the digit 8. For the digit 9 a plate 8 is attached tothe front side of the carriage in advance 8. An escapelevers 2 and .communicates with a shaft 10 through an escapement device 11. The uptaining plate 29 is pivotedly per end of the shaft 10 is entrained with the Acarriage 6 by means oit a gear segment and rack 13. A spring 14 actuates the car riage 6 fromright to left in the machine, the

normal or idle position of the carriage being that in Which the ,row of pins at. the lett is ;o riage is moved one space orroW v leltwardly when each key is operated. The keys also set up the corresponding pins 7 in the carl riage thereby representing or registering the numbers struck on the keys, all et which is well understood.

'lhe numbers thus set up or lregistered in the carriage may be introduced into and added bythe adding Wheels by reciprocation of racks 16 which swing from a sliat't 1 7 and have heels 18 Which strike against the pins 7 that have been set up in the carriage and thereby limit-forward movement or the racks and cause the correct number to be introduced and added lin the adding Wheels. Typercarriers 19 siving from said shaft 17 and have pin-andslot connection 20 with the racks. A bar 2l' is supported in front of v.the vertical portions ot the typecarriers and racks byA arms 22 suspended' from the shaft 17. Springs 23 connect Ward extensions of the type-carriers with rod 24 held by projections from the arms 22 whereby movement or" said arms Will actuat'e the type-carriers. 'llype `25 are moi/ably supported at the front ends oit the type-carriers and a platen 26 is arranged to hold and feed paper to the type-carriers-v Springs 27 connect the rearward projections of the typecarrers with the rear sides or' the racks therebyactuatingthe latter rearwardly with respect to the type-carriers. fitter tlie`,number is set up in the carriage the bar 21 is sWungforWai-d and the springs 23 move the type-carriers to recording position, and also move the racks because of the pin-andslot connections 20. The typeecarriers and racks are stopped. at proper position to record a number set up in the carriage by the heels 1.8 on the racks engaging with the pins representing the number. litter the type-car iiers Astop the type at the printing line are automatically driven to record by spring propelled hammers 28 which, at the proper time, are automatically released and thrown against the type eidectively to drive ythe latter to make impressions on the paper. it desuppor'ted' by the carriage 6 lettwardly from the rows of pins in the carriage and in idle position has its rear edge supported immediately in front ot the heels 18 of all the racks, by pinand-slot connection 29CL qwith aspring-*held plate 29h, thereby prevea4 ng movement o'l" the racks except "onen number is represent ed in a carriage. the trai/els which, through a series ogt let'twardly the plate moves successively from its position in liront o2? the heels 1&3, thereby releasing one rack for each digit in the number set up inthe carriage, and prerenting' movement o t the racks in higher or ders from the number registered. The plate 29? protrudes rearwardlyadjacent to a 'rod 29c which is carried by two arms 29d attached to a rock shaft 29e., @ne of the arms 29d extends belovv the shaft 29e and is pivoted to the rear end of a link 29E the trent end levers 29g, is operatively connected to the totals recording key 291. Depression of said totals recording ke Will swimy the rod 29c iiorivardl and 2 r push -lorvvardly theplate 29h. This operation dra-Ws "downwardly the plate 29 beloiv the heels on the racks, and permits the racks and type-carriers to 'move recordvany number or total represented in adding wheels. These parts are Well known, being :tound inthe machines ot the type with which here illustrated ny present invention as at present manufactured sold in the United ln per-forming examples or' subtraction by the machines present constructed the ininuend is registered in the carriage and then introduced .the adding Wheels and, it desired, record d. Then the complement or the subtrahend up to the full capacity-o he machine is struck on the keys and intro need into the adding Wheels by reciprocai the racks 16. in example ot this o Werl s illustrated in Fig. 3' in which o number represents the miniieiid i lwhich the number 125 is Jted. 'l'he machine being provided i i e type-carriers requires that sin i 9?. struck on the keys, lement or the number 97 be struck on the keys Y 'operation or" Will introduce ne uber into the adding iinuend already nie result will be een the subtrahend num Ctr care on the part le correct number lie err in this rd, Went ntion overcomes this ob joction an f maticall the complementary 99s ilviif oren" narily introducing them ir io machine 'through the keyboard. o includes a iioyol arrangement complementary keys and uicirly and readily perform :mechanism for autowhereby operator may tion and convenient to the operator.

of the machine adjacent to the hammer sec- The stem of the key is provided witha slot 31 receiving studs 32 and permitting depression of the key. The lower end of the key stem rests upon the projection 33 on the forwardly projecting arm vof a bell-crank 'lever 34 which is pivoted to some stationary part of the machine. A link 35 connects -the opposite arm of the bell-crank lever 34 with a lever 36 whichis attached to a shaft 37 at the rear of the machine, and is actuated rearwardly by a spring 35a. The lever 38, pivoted to a shaft 39 leftwardly from the group of racks, has one arm extending over the rear edge of the plate 29 and carrying a roller 40. Said lever 38 has another arm extending vertically in front of a pin 41 on the link 35 whereby depression of the key 30 will cause the horizontal arm of the lever 38 to press downwardly. the spring-held plate 29 from its position in front of the heels 18 which will release all of the racks from detention by said plate. A spring-42 is arranged in connection with the lever 38 to support the horizontal arm thereof and to restore the parts actuated thereby to idle position when they are released. The shaft 9 extends transversely behind the lracks 18 and carries pivoted on its end opposite from the lever 38 a plate 43 having a pin 44 projecting behind the rack in units order and acting normally as a stop or abutment for said rack. When the pin 44 is carried below the` eiid of the rack into the line of i movement of the heel 18 the spring 27 thereupon actuates the units rack yrearwardly until stopped by th'e heel 18 striking the pin .44. This movement is arranged to be suilicient for units rack to carry or introduce 1 into the units adding wheel in addition to vany units that may be represented therein.

A detent or latch spring 45 is arranged to engage in notches 46 in the rear part of the plate 43 thereby to hold said plate and connected parts in either adjustment, but will permitl forcible movement of said parts. The rock shaft 37 has attached thereon an eccentric collar 47 which is encircled by the hub of a bell-crank lever 48 having a for-l wardly extending arm and another arm'extending downwardly in front of projections 49 on the plate 43 and one ofwhich is above and the other below the shaft 39. The forwardly extending arm of the lever 48 has a roller 50. -VVhen the racks and type-carriers areswung forwardly a link 51 in the machines as now used, (marked 50 in the Hopkins British patent) moves obliquely downwardly and forwardly. The lower edge of this link is provided with a cam surface 52 arranged to operate against the roller 50 without moving the lever 48 and a cam portion 53 at the rear part of the link which operates against the roller 50 and thereby two numbers.

swings the lower arm of the lever 48 rearwardly. A spring 54 sustains the lever 48 in its normal position. When the shaft 37 is rocked byvoperation of"the link 35 the eccentric 47 on said shaft raises the pivotal point of the lever 48 and brings the lower end of said' lever immediately in front of the lower pin 49. Upon forward mo'vement ofthe link 51 the cam 53 thereon causes the lower arm of the lever 48 to engage the pin 49 below the shaft 39 and thereby swings the plate 43 to the position shown by dotted lines in Fig. 8. Rearward movement of the racks 16 carries the units rack backwardly until it is 'stopped by engagement vof the heel 18 withthe pin 44, which movement is suficient to cause said rack to introduce into the units total wheel 1 in addition to the.

digit in units order which had been struck on the key. Release of the key 30 will enablethe parts operated thereby, including the eccentric 47, to` return to their idle positions. The next'movement of the racks and type-carriers and the link 51 will cause operation of the lever 48, bringing a'l shoulder 55 thereon into Contact` with the upper pin 49 and therebyv raising the plate 43 to its normal or idle position in Awhich the pin v riage by striking the proper keys with re- ,j

spect to the large characters thereon. It is desired to subtract from the minuend the number 125 which, as previously stated, is accomplished by` introducing the full complement. of that number into the adding mechanism where it is added to the minuend and the result ,is thedifference between the The provision of the small characters on the keys enables the operator readily to select the complementary digits without previous mental calculation. In doing so the operator will simply strike the keys representing the subtrahend by small characters, the complement of 125, as thus determined, being 874 on which keys the digits l, 2, and 5 are represented by small characters. Having thus introduced the number874 (or 1 less than the actual complement) as the complement of the number 125 into the carriage the operator then will depress the key 30 thereby depressing the spring-held latch plate 29 by operation of the lever '38. The eccentric 47 being rocked raises the lever 48. Then the type-carriers and racks are swung forwardly in the usual way. The three lracks required to introduce into the adding wheels the hr.' .1 :u -y

Ene remaining reel-is a; the

movement ot the complement of the ding wheels'. The :forward stroke as i ie lower end ot' the in t9 and thereby 1"" to position that will pen s order to travel rearor This isnecessary the complement oit l25,

ne actual complement or numis M875. The advantage of this key-board, and the smalliigures l, 2, and M5. are found on the 8, l and 4 keys, respectively. This additional move-- ment ot the units .rack i6 actually causes 5 to be added to the unit already represented in units adding wheel instead oit el, and a like operation occurs at each operation ot the racks when the subtracting key 30 is depressed. lis soon as the racks .and typecarriers return to their rearward positions the key 30 is lreleased and the carriage 6 having returned to its idle .position at the right of the machine, the plate 29 rises in front of all of the rack heels i8. The eccentric l? also lowers the lever 48. rlhen the bar 2l and arms 22, as well as the link 5l, are swung forwardly to permit the type-carriers and racks all to return to their idle positions. 'lhis movement ot' the link 5l again operates the lever t8 causingthe shoulder 55 thereon to engage the upper pin 49, which raises the front end of the'plated to posi tion the pin 4eiagainst the rear end of units rack 16, which completes the operation ot Asubtraction and causes the remainder number to lbe retained in the adding wheel, such number being shown at B in Fig. a.

llt is also well known that the machines of the type illustrated are operable to add, subtract, or multiply numbers without recording them. rllhe means for accomplishing this result includes what is callednon print lever or key 56 arranged adjacent to the printing hammers 28. By holding the lever 56 in its depressed position while the type-carriers and racks are operating, the

number in the .carriage will be introduced into the adding wheels, and the paper will be ted one line space around the platen without making any record of the number added. lhe lever 56 is connected to a plate or bar which is movable by said lever into the path ot' the printing hammers so as to prevent their striking against the type. This pre- A depressed plate en aeainst the l iront or the careason that 67 l? was set np in the' i n resides in the tact that it enables the operat r at all time.J to :tollow the -without the least i allows 'his may done in p i ples ci s 1action by imi 7"oved n 'ch instance it is de l the su.d rahend complement be noeJ recoit A. specimen et' work is shown ifi i in which tine minnend and re i recorded, but tlie suhtraliend coirv not recorded. or convenience ot opV l have positioned the subtraction key proximity to the n0-print irey or lever 56 se that botlt be operated at the same time without the slightest inconmeniencea is also well known that addition otx numbers which are recorded. This result is ettected by depression ot a key 5i' prior to ope-ration ofthe racks and type-carriers, key being held in its depressed position 'while the racks and type-carriers operate. .ln L ig. 6 is illustrated a complete example ot worlrby a. machine provided with a nonadding key. ln this example the minuend i is printed, and the subtrahend C may also'be recorded and not added, thereby indicating both the subtrahend and minuend. After the subtrahend and minuend have bn recorded in this way -the subtrahend complement is added, and, it desired, is recorded, and produces the proper remainder number B. Fig. 6 therefore illustrates every step actually performed in operating the machine for these purposes.

l am aware that there may be variations in the arrangement and construction of the parts comprising the present invention departure from the spirit and scope of the invention. l am also aware that with slight modification and adaptations the invention may be applied to various species ot adding machines -and li do not restrict myself to its combination in machines of any particular class.

`What l claim and desire to secure by laetters Patent is:

l. lin an adding machine, adding wheels 'arranged in numerical orders, racks for operating said adding wheels, mechanism for lreciprocating said racks to operate said adding wheels in adding operations, a pivoted member limiting movement yot lthe rack in units order in one direction, means toi" positioning said pivoted element in ditterent positions to enable said units rack to move varying distances while actuating the these :machines .include means tor preventing lll) nism for causing said recording mechanism to record a number of greater numerical value than the number represented by said devices o r said adding mechanism in certain operations of the machine.

3.l In a machine of the character described, a carriage, devices in said carriage adjustable to represent numbers, and recording mechanism operable to record num-A bers represented in said carriage, in combination With means for causing said recording mechanism to record a number of greater numerical value than vthe number represented in said carriage.

4. In an adding machine, the combination of a series of racks, an elementi for holding said racks in their idle positions, a device for moving said element in one direction to release predetermined numbers of said racks for adding operations, adding mechanism' operated by said racks in adding and clearing operations and means for moving said element in another direction to release said racks for `adding operations in any position of said device.

5. In an adding machine, the combination of a series of adding wheels, a series of racks for operating said adding Wheels in adding operations, an element holding said racks in idle position, a device for moving l said element in one direction to release predetermined numbers of said racks in adding operations and an. independently operable device for moving said element in another direction to release said racks for adding operations in any position of said firstnamed device.

6. In an adding machine, adding Wheels, racks for operating said adding Wheels in adding and subtractingoperations, an element for holding said racks, a device for moving said element in one direction to release varying numbers of said racks, a series of keys each of which controls the release of said element from. any desired number of said racks; means for moving said element in another direction to release said element from said racks, and an independent device for releasing said element from said racks in clearing operations.

7. In an adding machine, the combina-` tion With a series of reciprocating racks operable in adding and clearing operations and a device for holding said racks in their idle positions, of means for moving'said device in one direction to release varying numbers of said racks, means for moving said device in another direction to release an additional number of said racks for clearing operations, and means .for moving said device to release all of said racks for clearing operations.

8. In an adding machine, a series of racks, differential mechanism for limiting movement of said racks in adding operations, an element for holding said racks their idle positions, mechanism for setting said differential mechanism and moving said element in one direction to release varying numbers of said racks, and means for moving said element in another direction to release an additional number of said racks prior to the operation of said racks, after said diiferential mechanism has been set.

9. In ,an adding machine, the combination With a series 'of reciprocating racks operable in adding operations, an element for holding said racks in their idle positions, differential Lmechanism for limiting movement of said racks in adding operations and mechanism d for setting said differential mechanism and moving said element in one direction to release a predetermined number of .said racks, of means under control of the operator for moving said element in the opposite direction to release an additional number of said racks while said differential mechanism remains set as aforesaid, `and prior to operation of said racks. 10. In an adding machine, the combination With a series of reciprocating racks operable in adding operations,l differential lmechanism for limiting movement of said racks in adding operations and an element for holding said racks in their idle positions, of means for moving said element in one direction to release a number of racks equal to the number of digits set in said differential mechanism incidentally to the setting of said number, and optionally operable means for moving said element in another direction, to release `an additional number" of said racks after said`element has been moved, as aforesaid.

11. In an adding machine, the'combination with a series of racksoperable in .adding operations and a plate for holding said racks in their idle positions, of means for moving said late in one direction to release varying num ers of said racks for adding operations, a lever movable into engagement with said plate, and means for operating said lever effectively to move said plate in another-direction to release an additional number of said racks after said plate has been moved, as aforesaid.

12. In an adding machine, the combination with a series of reciprocating racks operable in adding operations, a carriage,

differential devices mounted in said carriage for limiting movement of said racks, an element in said carriage holding said racks in their idle positions, mechanism for setting. said differential 'devices to limit movement of said racks and moving said element in one direction'to release a number of racks equal to the number of digits represented by said differential devices, of a lever for moving said element in another direction to release an additional number of said racks While Wheel for each ci'E several numerical orders including,4 units order, a rack :tor operating' each of said adding1 Wheels, tran l' 'i devices operating automatically cause si id racks and adding Wheels to transfer successively from units order to higher orders, a movable abutment for the rack in units order and a transfer device controlling said abutment whereby the rack and Wheel in units order may be caused to perform a` transferring; operation.

14C. ln an adding?,n and recording machine, a carriage, means for setting` up numbers in said carriage preliminary to adding,` and recording operations, adding and recording; mechanisms, means :tor operating said addu ing and recordii'iig` mechanisms to add and record the numbers set up in said carriage, means for preventing said addingI mecha nism from adding` a number of greater numerical value than the number set up in said carriage, and means under control of the operator Whereby said adding' mecha-- nism may be operated at selectedv times to add a number in excess of the number set up in saidA carriage.

15. ln a machine of the character described, a movable carriage, a series of racks,

a detaining device supported by saidl carriage for said racks, adding Wheels controlled by said racks, means for operating said racks and Wheels in adding operations, and means for releasing said detaining device While said1carriage is stationary avvay from its idle position.

16. lfn a machine of the character described, a carriage, aseries of ten numeral keys operable to set up in said carriageany desired number Within the adding capacity of the machine, adding mechanism, actuating devices controlled by said carriage whereby any number Which has been set up in saidv carriage, and the full complement of nines of said numbers may be introduced into said adding mechanism at one operation, and means for operating said actuating devices, substantially as specified.

17. Subtracting mechanism comprising a 'number of Wheelsr arranged in numerical orders, a number of racks also arranged in numerical orders for actuating said Wheels, a carriage controlling said racks, keys, ele ments in said carriage settable by said keys to represent the subtrahend, means for operating said racks and said Wheels in sub tracting operations, and means under control of the operator for causing said racks to introduce into said Wheels the full complement or" nines of any number set up said carriage irrespective of the position mechanism remains set, as

13. ln an adding,A machine, an adding' n a 1 e I racks vin connection with said type-carriers, operation is vimggl said altex move lease an adn rer addingn en dilerential mechanism Whose necessary before said type-carriers and racks be operated in certain operations, a total recordingI key operable to permit operation of said type-carriers and racks independently of an operation of said dii'i'erential mechanism, and manually operable means independent of said key operable to permit V certain of saidvtypecarriers and racks to be operated independently of any previous operation of corresponding parts oi said difierential mechanism.

20. lln an adding machine, addingl Wheels a ranged in numerical orders, racks arranged in numerical orders for actuating said adding Wheels, a device holding said racks, differential mechanism for controlling said racks in adding operations, means tor i setting said diderential mechanism to control said racks and also to release said racks and also to release said holdings,l device, and means for releasing said holdin@ device from the remaining racks after said diferential mechanism has been adjusted to control certain of said racks, and means for op-` erating all of said racks in adding opera tions after said holding device has been released as aforesaid.

21. ln an addiingq machine, adding` Wheels arranged in numerical orders, racks also arranged in numerical orders for actuating said adding Wheels, means for operating said racks and Wheels in addingl operations, a pivoted plate for preventingoperation of 'said racks, a lever engaging said plate, a key, connections from said key igor operating said lever to release said plate, means for operating said actuators and adding mechanism in addingoperations While said plate is retained in released adjustment by operation of said key, substantially as specified.

22. ln an addingn machine, adding Wheels, racks for actuating said adding Wheels, means for operating said racks, and a detaining device holding said racks, in combination With a lever for moving said detainii'igg,` device, a spring holding,1 said lever means for moving lli disengaged from said detining device, a signature and seal to this specification this link for operating said lever and thereby 25th day of June 1909, in the presence of two said detaining devlce to permit operation of subscribing Witnesses.

said racks in adding operations, and a key o BIRNEY DYSART. [1.. s.] 5 for operating said link, substantially as Witnesses: i specified. J. D. RIPPEY,

In testimony whereof I have aiiixed my L. C. KINGSLAND. 

